We crammed a lot of sprinting in in half an hour. I wouldn't say I was going AFAP on all of them, but going pretty hard. The :55 in 100 back kick is nothing to write home about. But I worry about hitting bottom (I have) and there are no backstroke flags, so top speed seems impossible. I don't think I'll be able to do AFAP backstroke or backstroke kick in any pool except Pitt. Pitt is closed for a couple weeks starting next week and Sewickley is closed for a week in August. So I may be forced to swim in "Lake Lebo."